Horizontal Directional Drilling


What is Horizontal Directional Drilling/HDD?

Horizontal directional drilling or HDD, also known as Directional boring, is a steerable trenchless method of installing underground pipes, conduits and cables in a shallow arc along a prescribed bore path, by using a surface-launched drilling rig, with minimal impact on the surrounding areas.

What is the process of execution?

  1. Drill a pilot hole on the designed path.
  2. Enlarge the hole by passing a larger cutting tool known as the reamer. The reamer's diameter depends on the size of the pipe to be pulled back through the borehole.
  3. Place the product or casing pipe in the enlarged hole by way of the drill stem; it is pulled behind the reamer to allow centering of the pipe in the newly drilled path.

How is Horizontal Directional Drilling/HDD used?

Horizontal directional drilling/HDD is used for installing telecommunications lines, water lines, sewer lines, gas lines, oil lines, product pipelines, and environmental remediation casings.

It is used for crossing waterways, roadways, congested areas, environmentally sensitive areas and other areas where digging a trench is not possible.

Which industries use Horizontal Directional Drilling/HDD?

  • Oil and Gas
  • Telecommunications
  • Utilities
  • Water

Some projects where we have executed Horizontal Directional Drilling/HDD/Directional Boring

  • Executed city gas distribution work 50000 Mtr by HDD for Gujarat Gas Company Ltd.
  • Executed pipe laying by HDD for ONGC.
  • Executed cross-country pipeline by HDD for GAIL
  • Executed connection of water line by HDD for Orange City Hydraulics Works Pvt Ltd.
  • Executed electric cable laying by HDD for North Delhi Power Ltd.
  • Executed electric cable laying by HDD for Jodhpur Vidyut Vitran Nigam Limited.